E like me ka PCB papa hoʻoikaika 'ia mea, ia mea maʻamau māhele 'ia i loko o kēia mau 'ano: 1. Phenolic PCB pepa substrate No ka mea, keia ano o ka PCB papa ua haku ia o ka pepa pulp, laau pulp, etc., i kekahi manawa e lilo i cardboard, V0 papa, flame- papa retardant a me 94HB, etc. ʻO kāna hoa nui ...
Heluhelu hou aku